Add a testcase which got fixed by recent legalization work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72517 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/2009-05-19-SingleElementExtractElement.ll b/test/CodeGen/X86/2009-05-19-SingleElementExtractElement.ll
new file mode 100644 (file)
index 0000000..42bf9e9
--- /dev/null
+++ b/test/CodeGen/X86/2009-05-19-SingleElementExtractElement.ll
@@ -0,0 +1,16 @@
+; RUN: llvm-as < %s | llc -march=x86-64
+; PR3886
+
+define i32 @main(i32 %argc, i8** nocapture %argv) nounwind {
+entry:
+        %a = call <1 x i64> @bar()
+        %tmp5.i = extractelement <1 x i64> %a, i32 0
+        %tmp11 = bitcast i64 %tmp5.i to <1 x i64>
+        %tmp8 = extractelement <1 x i64> %tmp11, i32 0
+        %call6 = call i32 (i64)* @foo(i64 %tmp8)
+        ret i32 undef
+}
+
+declare i32 @foo(i64)
+
+declare <1 x i64> @bar()